Reading Float values from a file

The class presented below reads float values from a file.

Code:

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public class ReadingFloat {
 public static float[] readFile(String file, String delimiter)
    throws Exception {
  return(readValues(new java.io.FileInputStream(file), delimiter));
  }

 public static float[] readURL(String url, String delimiter)
    throws Exception {
  java.net.URL addr = new java.net.URL(url);
  return(readValues(addr.openStream(), delimiter));
  }

 public static float[] readValues(java.io.InputStream in, String delimiter)
    throws  java.io.FileNotFoundException,
            java.io.IOException,
            java.lang.NumberFormatException {
  String thisLine;
  java.io.BufferedInputStream s = new java.io.BufferedInputStream(in);
  java.io.BufferedReader myInput = new java.io.BufferedReader
      (new java.io.InputStreamReader(s));
  int j = 0;
  float[] values = new float[10];

  while ((thisLine = myInput.readLine()) != null) { 
    // scan it line by line
    java.util.StringTokenizer st =
          new java.util.StringTokenizer(thisLine, delimiter);
    while(st.hasMoreElements())
      values[j++] = Float.valueOf(st.nextToken()).floatValue();
      }
    return(values);
    }

 public static void main(String arg[]) {
  new ReadingFloat().demo();
  }
     
public void demo() {
  try {
    // we assume 10 floats (max)to be read
    float results [] = readFile("floatwithdelimitercolon.dat", ",");
    for(int i = 0; i < results.length; i++ ) {
      System.out.println(results[i]);
      }
    System.out.println(); 
    results = readFile("floatwithdelimiterspace.dat", " ");
    for(int i = 0; i lt; results.length; i++ ) {
      System.out.println(results[i]);
      }
    }
  catch (Exception e) {
    e.printStackTrace();
    }
  }
}

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